Besides, it's leaving out a lot to say that today's weed is so strong and more so than what hippies had in the 70s. Surely cannabis strains were bred and cultivated back in the day and people with access did get the good stuff as opposed to some seedy mexican brick weed with stems and leaves in it?
If the stuff now is 20% thc and the garbage in the 70s you remember having was 5% just smoke a quarter instead, no big deal. Scales are not illegal nor expensive.
And if you desire a better THC:CBD ratio you only have to choose better, thanks to a regulated market.
The fearmongering that it's different "now" tends to ignore this.
No, it was universally worse, because those strains hadn't been bred yet. What you're doing is like assuming that some people in the 60s got to use the "good" computers.
If you just sow a field full of random seeds and just forget about them until harvest instead of maintaining them, removing the males, etc your quality will be worse.
Any regulated shop is going to have clerks ambiguously asking you your tolerance level, as if we were all running around getting high for the last 20 years with illegal and consistent reliable sources - like they did.
Then they bombard you with edibles and all kinda of concoctions, most of which are impossible to have an even distribution of THC in them. Smoking being the lowest common denominator on this menu.
This is what consumers are experiencing for now, and it can improve.
If the question is that ambiguous, then your answer is simply "no tolerance."
Why not just smoke a sufficiently small particle then?